Install Adobe Flash Player on MacBook Air

[Paula0705]

I am trying to install Adobe Flash Player on MacBook Air and it stops at 98% stating that it needs to to close Safari browser, I close it and still it does not fully install it. 

[pwillener]

You need to close the Safari process, not only the browser window.

If you don't know how to do that, restart your Mac, then run the downloaded installer before doing anything else.